refactor: add express typings

package.json

@@ -91,13 +91,14 @@
   },
   "devDependencies": {
     "@angular-devkit/build-angular": "^0.803.23",
-    "@angular-devkit/core": "^8.3.23",
-    "@angular-devkit/schematics": "^8.3.23",
-    "@angular/cli": "^8.3.23",
-    "@angular/compiler-cli": "~8.2.14",
-    "@angular/language-service": "~8.2.14",
-    "@babel/preset-env": "^7.8.3",
-    "@schematics/angular": "^8.3.23",
+    "@angular-devkit/core": "^8.3.18",
+    "@angular-devkit/schematics": "^8.3.18",
+    "@angular/cli": "^8.3.18",
+    "@angular/compiler-cli": "~8.2.13",
+    "@angular/language-service": "~8.2.13",
+    "@babel/preset-env": "^7.5.5",
+    "@schematics/angular": "^8.3.18",
+    "@types/express": "^4.17.2",
     "@types/jest": "^24.0.18",
     "@types/node": "^12.12.7",
     "codelyzer": "^5.1.0",

server.ts

@@ -144,7 +144,7 @@ const angularUniversal = (req: express.Request, res: express.Response) => {
       req,
       res,
     },
-    (err: Error, html: string) => {
+    (err, html) => {
       if (html) {
         let newHtml: string;
         if (process.env.PROXY_ICM && req.get('host')) {
@@ -164,7 +164,7 @@ const angularUniversal = (req: express.Request, res: express.Response) => {
   );
 };
 
-const hybridRedirect = (req, res, next) => {
+const hybridRedirect = (req: express.Request, res: express.Response, next: express.NextFunction) => {
   const url = req.originalUrl;
   let newUrl: string;
   for (const entry of HYBRID_MAPPING_TABLE) {